本程序需在DOS下运行。每运行一次可执行程序random.exe，即可显示任意两个 16进制数的加法或减法表达式及其运算结果。在减法运算中，如果被减数小于减数，...

code for calculator generally used for working of calculator

用空格符实现对字符串中某一个字符的替换，程序经过调试-By a space at the realization of a string of characters to replace, the program after debugging

upd 6464a 取得程序 51 汇编指令-upd 51 6464a acquisition procedures compilation directives

8259A中断控制器实验 253A的计数器0为工作方式0，装入时间常数FFFFH，结束中断时显示信息：8253A INTERRUPT EXPERIMENT！-8259A interrupt controller experimental 253A of counter 0 0 way to work, the time constant FFFFH loaded to end disruption to display information : 8253A INTERRUPT EXPERIMENT!

带液晶显示屏的1拖8的EEPROM抄写器原代码,抄写速度很快,带校验功能.-LCD screen with one of the 8 trailers EEPROM device copying the original code, copying fast, with calibration function.

二进制文件比较程序-binary file comparison procedures

汇编语言实现的控制小键盘的小程序，输入字母数字时能在小键盘上显示出来-Assembly language to achieve the control of a small keyboard applet, enter the alphanumeric keyboard can be displayed in a small out

一个AD转换代码，是我们做的接口实验，有用的下载。-an AD converter code, we do experimental interface, useful download.

运行可执行程序testword.exe，出现菜单主界面，按回车键出现由26个字母组成 的乱序行，这时其中任一字母落下，在键盘上敲入该字母，如果输入正确，字母 消失；按ESC键返回主界面；按空格见暂停；按‘E’退出。-Run the executable program testword.exe, the main interface, the menu that appears, press the Enter key appears composed of 26 letters out of order lines, when any one of the letters fall in the Jianpanshangqiao into the letters, if you type correctly, the letter disappeared Press ESC key to return to the main interface according to space, see the moratorium Press " E" out.